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 Item# 51221 / Condition:  Brand New


Amplified Marine / PowerSport SOUNDBAR with Bluetooth Connectivity Review this product

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Legendary JBL pro and home audio performance is now available for the great outdoors. The new JBL STADIUM UB4000 Powersports Soundbar is designed for UTVs, boats and other personal and family vehicles built for fun and recreation. Take the wheel or helm and experience the sound of powerful JBL rollicking sound. It's also equipped with a super flexible mounting system that fits any size roll cage and will take a 10G shock and stay put. You can also separate the soundbar into two speaker towers to optimize sound quality for any installation. There's a GoPro shoe for an action camera to share your finest moments—like how you look when you hit your first hole in one. With JBL sound leading the way, you'll find yourself in the cockpit ready to do things you've never done before—be it on land, sea or a long green fairway.

The UB4000 is waterproof and splashproof so it is perfect for off-road travelling while enjoying your favorite music in the wild. It also sports a quick and easy release clamps for ease of intallation anytime, anywhere.

Onlinecarstereo is a long time authorized online retailer of JBL products. We source ouor inventory straight from the manufacturer so you know you are getting original JBL  merchendise. We always strive to provide the cheapest price online and 100% total customer satisfaction and after market service.

  • Color: Black


  • 4 marine-rated 4" long-excursion drivers
  • micro USB connection for software updates
  • Class D amplifier (120 watts RMS x 2 channels)
  • warranty: 1 year
  • use optional JBL SK300BLK kit to separate the unit into two speaker towers
  • built-in Bluetooth for music streaming
  • universal mounting clamps, inserts, and quick-release brackets
  • dimensions: 31-1/2" x 6-1/8" x 5"
  • automatic shut-off system protects battery
  • Party Mode works with up to three Bluetooth devices
  • 31.5" sound bar designed for ATV, golf cart, and marine use
  • IPx6-rated weatherproofing
  • 2 marine-rated 2" dome tweeters
  • frequency response: 50Hz-20kHz
  • maximum SPL: 100dB
  • 3.5mm and RCA auxiliary inputs for music players
  • 2-channel RCA preamp outputs
  • front-panel red LED display and dual-level LED task light

The high performance speaker array consists of a pair of 4" long excursion mid/woofers and one high output tweeter per channel. The STADIUM UB4100 can also be separated into two speaker towers utilizing the optional Harman SK-300 separation kit which includes a 10’ (3m) bridge umbilical cable and rear and bottom filler plates.

  • Weight: 6
*Warranty: 1 Year Onlinecarstereo.com warranty.
1 Year warranty from Onlinecarstereo.com implies that repairs must be returned to Onlinecarstereo.com, not the manufacturer. More information can be found in our help section under returns & warranties.
What's not covered : Misuse, abuse, defacement, physical damage of any kind, and improper installation / operation. Video and multimedia equipment with damaged or cracked screens.Subwoofers and speakers are not warranted against being blown, burned or abused.